Yeah Jon, I don't know what GM is doing. They had rear disc's on the 1500 2wd and they seemed to work fine. They were having problems with calipers sticking and rotors warping so maybe the figured they could save a few bucks. As usual they figured that no one would notice them going backwards a few decades in technology.
Sticking calipers seems to be a common problem with many of the light duty trucks on the market these days. Dodge, Nisssan, and GM all have had a problems with warping rotors due to sticking calipers in the first few thousand miles.
I think they need to look hard at the vendors they are using and demand a solution. Oh wait, I forgot they did find a solution for the rear. Has anyone checked to see if the new GM trucks have drum brakes on the front too...
